Promethazine

Promethazine is the active ingredient in this medication.It is a type of antihistamine that belongs to the phenothiazine class of drugs.

Nausea and vomiting

Allergic reactions (including hives, itching, and swelling)

Motion sickness

Preoperative sedation

Insomnia (in some formulations)

Metha 25mg Tab (Promethazine) works by blocking the action of histamine, a chemical that is released during allergic reactions. It also has anticholinergic and sedative effects, which contribute to its effectiveness in managing nausea and vomiting.

Store promethazine at room temperature, away from heat and direct sunlight. Keep it out of reach of children.

The dosage of promethazine will vary depending on the reason for taking it and your individual needs.

It is typically taken by mouth, but it can also be given as an injection or suppository.

Always follow your doctor's instructions carefully.

Drowsiness

Dry mouth

Blurred vision

Constipation

Dizziness

Headache

Restlessness

Extrapyramidal symptoms (muscle spasms, tremors)

Allergic reactions (rash, itching, swelling)

Alcohol Consumption

Avoid alcohol while taking promethazine, as it can increase the risk of drowsiness and other side effects.



While Driving or Operating Machinery

Promethazine can cause drowsiness, so it is important to avoid driving or operating machinery until you know how it affects you.



Pregnant & Breastfeeding Women

Promethazine is not recommended for pregnant women unless the benefits outweigh the risks. It can pass into breast milk and may harm a breastfeeding baby.



Children

Promethazine is not safe for children under the age of 2 years. Use caution when giving promethazine to children, as they may be more sensitive to its side effects.



Kidney

Promethazine may be harmful to people with kidney problems.



Liver

Promethazine may be harmful to people with liver problems.

https://www.medicinenet.com/promethazine/article.htm

https://www.drugs.com/promethazine.html

https://www.mayoclinic.org/drugs-supplements/promethazine-oral-route/description/drg-20069127

https://www.webmd.com/drugs/2/drug-1522-PROMETHAZINE.aspx